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STUDI KANDUNGAN KLOROFIL A DAN SUHU KAITANNYA DENGAN BIOMASSA IKAN TERUMBU KARANG DI KAWASAN KONSERVASI LAUT DAERAH (KKLD) KOFIAU-BOO, KABUPATEN RAJA AMPAT Riyanto, Arifismail Eko; Yusuf, Muh.; Wijayanti, Diah Permata
Journal of Oceanography Vol 4, No 1 (2015)
Publisher : Program Studi Oseanografi, Jurusan Ilmu Kelautan, Universitas Diponegoro

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Wilayah Kabupaten Kepulauan Raja Ampat merupakan kepulauan yang terdiri dari kurang lebih 610 buah pulau besar dan kecil yang memiliki potensi sumberdaya terutama terumbu karang. Keanekaragaman dan biodiversitas yang tinggi merupakan potensi bagi wilayah Raja Ampat yang perlu dikelola lebih baik agar memberikan dampak signifikan bagi kemakmuran masyarakat pesisir perairan Raja Ampat. Tujuan dilaksanakan penelitian ini adalah untuk mengetahuikandungan klorofil-a, dan suhu permukaan laut (SPL), mengetahui hubungan antara klorofil-a terhadap biomassa ikan karang di KKLD Kofiau – Boo , Raja Ampat. Penelitian ini menggunakan metode deskriptif untuk menggambarkan keadaan lokasi secara jelas dengan data klorofil-a yang diperoleh dari citra MODIS, suhu dan biomassa ikan diambil secara insitu dari perairan Raja Ampat.Kandungan nilai klorofil-a berkisar antara 0,14 - 0,22, rata – rata nilai kandungan klorofil-a dari 16 lokasi sebesar 0,2 . suhu permukaan laut berkisar antara 28,16°C – 29,82°C. lokasi yang memiliki kandungan klorofil-a sebesar 0,2 mg/ memiliki nilai biomassa ikan jenis herbivora tinggi, sedangkan pada ikan jenis karnivora nilai biomassa ikan rendah. Lokasi yang memiliki kandungan klorofil-a dibawah 0,2 memiliki nilai biomassa ikan jenis herbivora rendah, sedangkan pada ikan jenis karnivora nilai biomassa ikan tinggi.

Pengaruh Depurasi Terhadap Konsentrasi Logam Berat Timbal (Pb) dan Kadmium(Cd) dalam Jaringan Lunak Kerang Darah (Anadara granosa) Setiawan, Alam; Yulianto, Bambang; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Blood Cockle (Anadara granosa) is one type of shellfish which have an important economic value in Indonesia. Semarang waters is one of the location of the Blood Cockle which were allegedly tainted by Pb and Cd. The metal content could be reduced by depuration. This research purposed to determine the content of heavy metal concentrations in Semarang waters and determine the effect of shell length and the length of depuration time on the heavy metal concentrations of Pb and Cd in the A. granosa. This research was conducted on 23 July to 28 August 2010. The method used in this study is description on the preliminary research and laboratory experimental method for depuration. Preliminary research was performed by testing the concentration of heavy metals in water, sediments and soft tissue of A. granosa in the waters of Semarang. Primary research conducted depuration process based on differences size of the scallop shell length â‰¥ 2.0 cm and < 2.0 cm, and different time depuration treatment, i.e. control (without depuration), 1 day, 3 day, 5 day, and 7 days. According to AAS test results showed, the highest concentrations of Pb and Cd heavy metals in Semarang water respectively at 0.23 ppm and 0.036 ppm, in sediment 1.48 ppm and 0.091 ppm, and in the soft tissues of A. granosa of 0.82 ppm and 0.042 ppm. Depuration process can reduce the content of heavy metal concentrations of Pb and Cd, respectively at 0.37 ppm and 0.051 ppm.

KONDISI EKOSISTEM TERUMBU KARANG DI ROTE TIMUR, KABUPATEN ROTE NDAO, TAMAN NASIONAL PERAIRAN LAUT SAWU MENGGUNAKAN METODE MANTA TOW Achmad, Andy; Munasik, Munasik; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Waters of the Savu Sea serves strategic means for the development of East Nusa Tenggara province, because most of the district / city in the province is highly dependent on the Savu Sea. The purpose of this study was to determine the condition of coral reef ecosystems using the Manta Tow in the waters of the East Rote, District of Rote Ndao, province of East Nusa Tenggara in the plan of conservation areas Savu Sea Marine National Park. The results show the percentage of hard coral life cover in the East Rote 3 study sites in the category of bad. The west side has average cover of 23.98%. Mulut Seribu Strait have hard coral life cover percentage of 15.8% and eastern side has the lowest percentage to hard coral life cover average by 12.33%.

AKTIVITAS ANTIBAKTERI ISOLAT BAKTERI KARANG TERHADAP BAKTERI YANG DIISOLASI DARI KARANG TERSERANG PENYAKIT ULCERATIVE WHITE SPOTS DI PERAIRAN PULAU PANJANG, JEPARA Pamungkas, Yesaya Putra; Sabdono, Agus; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Penyakit karang telah diidentifikasi sebagai salah satu faktor utama yang memperburuk kondisi terumbu karang global. Adanya penyakit karang menimbulkan kekhawatiran akan kelestarian dan keanekaragaman terumbu karang. Ulcerative White Spots (UWS) adalah salah satu penyakit karang yang menginfeksi karang Favites sp. Penelitian ini bertujuan untuk mendapatkan isolat bakteri karang yang aktif menghambat isolat bakteri karang terserang penyakit UWS serta mengkarakterisasi secara biokimia. Penelitian dilaksanakan pada bulan Oktober 2013 - Maret 2014. Sampel diambil di perairan Pulau Panjang, Jepara. Studi mikrobiologi di Laboratorium Terpadu UNDIP Semarang, uji biokimia di Laboratorium Manajemen Kesehatan Hewan Akuatik, BBPBAP Jepara. Survey lapangan dilakukan dengan menggunakan metode belt transect. Bakteri diisolasi dari karang sehat dan karang yang terserang penyakit UWS. Purifikasi bakteri menggunakan metode streak. Uji antibakteri menggunakan metode overlay dan difusi agar. Uji biokimia menggunakan metoda Cowan and Steels. Hasil penelitian menunjukkan terumbu karang di Perairan Pulau Panjang memiliki tingkat prevalensi penyakit yang tinggi yaitu sebesar 66,037%. Hasil uji aktivitas antibakteri diperoleh isolat FSB 2.5 dan GSB 2.2.1 yang mampu menghambat pertumbuhan isolat bakteri karang terserang penyakit UWS. Karakterisasi bakteri secara biokimia dari isolat FSB 2.5 dan GSB 2.2.1 menyatakan bahwa bakteri masuk dalam genus Pseudomonas sp

Pengaruh Hym-248 Terhadap Metamorfosis Planula Karang Acropora spp Di Pulau Sambangan, Kepulauan Karimunjawa Afriandi, Andi; Trianto, Agus; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Multispecies synchronous spawning of scleractinian corals was first documented on Great Barrier Reef, Australia in the early 1980s. Settlement as the next stage of planulaeâ€™s life plays an important role in the persistence of coral colony. HYM-248 is one type of peptide synthesis, which has been shown to make Acropora spp planulae metamorphosed. This study aims to determine the influence of Hym-248 on Acropora spp planulaeâ€™s metamorphosed. The method is a eksperimental laboratoris, Slick is collected from Sambangan Island, Karimunjawa Archipelago when spawning occurs simultaneously in March. Provision of Hym-248 administered in 5 different doses, namely: 5x10-7; 1x10-6; 2x10-6; 5x10-6; 1x10-5 M and one control treatment without peptide. The results showed, Hym-248 was able to accele metamorphosis and attachment of planulae from the slick. Planulae started metamorphosis after 8 hours of treatment 1x10-6 M concentration. All of which planulae are in Iwaki wells that contained of Hym-248 are metamorphosed and even to stick. On control treatment only changes shape into an oval until the end of the observation time.

Pertumbuhan Fragmen Karang Polyphyllian talpina dengan Metode Transplantasi Mini-floating Nursery di Perairan Teluk Awur Jepara Lukytasari, Jenny; Wijayanti, Diah Permata; Munasik, Munasik
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Ornamental coral trade which is taken directly from nature is a source of revenue for the Indonesian economy, but on the other hand it is also a threat to coral reef conservation. Along with the increasing number of the ornamental coral exports it must be balanced with the conservation effort through coral transplantation. One of coral reef species that can regenerate and widely traded is Polyphillia talpina. Transplantation method used is the mini-floating nursery method, the coral transplantation method performed by a state hovering in the water column. This study aims was to determine the growth of solitary corals which were transplanted by mini-floating nursery method and to determine the process of regeneration that occurs with mini-floating nursery transplant method in Teluk Awur, Jepara. Growth of the highest coral transplant P. talpina seen in coral fragments with the size of 4 cm with a gain of 0,44 cm difference with regeneration process and the addition of the highest number of mouth was also to 70,12%. Statistical analysis showed there were no significant differences (p = 0,652) on growth and the initial size of the two fragments.

Pengaruh Perbedaan Ukuran Fragmen dan Metode Transplantasi Terhadap Pertumbuhan Karang Pocillopora damicornis di Teluk Awur, Jepara Prameliasari, Tiwi Ajeng; Munasik, Munasik; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Coral transplantation is one of culture methods by cutting a part of coral colony to be planted in the other place. Many kinds of coral transplantation methods have been applied such as electrolysis methods and coral transplantation using concrete substrate. Transplantation method used 2 factor, they are initial size (3 and 5 cm) and transplantation media method (used line and cement). The highest survival rates was shown by the fragment that were transplanted using hanging method on rope with an initial size of fragments was 5 cm. The survival rates of the transplants achieved 100%. While the rest of transplants both with the initial size 3 and 5 cm of substrate cement method and hanging on rope with the initial size 3 cm, only 83% of coral transplant were survived due to some fragments were dead and or disappeared. The highest growth rate of coral transplants to monthly look at the string method with fragment size is 3 cm (0.56 cm / month). While the lowest rate of coral growth seen in the string method with fragment size is 5 cm (0.43 cm / month). The growth of coral transplants to data analysis using SPSS 16 indicates no significant difference (p> 0.05) at the rate of coral growth on initial size differences and transplantation methods used and there is no interaction between initial size and method of transplantation.

Korelasi Panjang Berat Ikan Buntal Pisang Tetraodon lunaris Linnaeus, 1758 (Actinopterygii : Tetraodontidae) di Perairan Pati, Jawa Tengah Hapsara, Hudanu; Wijayanti, Diah Permata; Redjeki, Sri
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Perairan Pati mempunyai kekayaan sumberdaya jenis ikan yang beragam jenisnya. Salah satu hasil tangkapannya adalah Ikan Buntal Pisang (Tetraodon lunaris). Ikan Buntal Pisang memiliki bentuk badan membulat dan ukuran mulut yang kecil dengan moncongnya yang tumpul dan memiliki racun yang disebut tetrodotoksin (TTX). Namun Ikan Buntal Pisang memiliki kandungan gizi yang cukup tinggi dan sebagian masyarakat Pati mengolah ikan ini menjadi ikan asin. Penelitian ini didasarkan pada hasil tangkapan Ikan Buntal Pisang yang didaratkan di PPI Banyutowo oleh nelayan yang melakukan penangkapan di perairan Pati. Penelitian ini bertujuan untuk mengetahui nilai hubungan panjang berat Ikan Buntal Pisang yang berada di perairan Pati. Penelitian ini dilakukan dengan metode penelitian deskriptif, dimana pengambilan sampling berdasarkan metode pertimbangan (purposive sampling method). Penelitian dilaksanakan bulan Februari â€“ April 2016 di PPI Banyutowo. Materi yang digunakan adalah 360 sampel Ikan Buntal Pisang. Sampling Ikan Buntal Pisang dilakukan sebanyak 3 kali yaitu 13 Februari, 12 Maret, dan 9 April 2016. Analisa data berupa analisis hubungan panjang berat Ikan Buntal Pisang. Hasil penelitian menunjukan pertumbuhan Ikan Buntal Pisang pada bulan Februari â€“ April 2015 bersifat allometrik positif yang memiliki nilai slope (b) sebesar 3,30.Â Pati waters has a rich variety of fish species. One of the catches is Green Rough-Backed Puffer (Tetraodon lunaris). Green Rough-Backed PufferÂ have a rounded body shape and small mouth size with a blunt snout and a poison called tetrodotoxin (TTX). But this fish has a high nutritional content and some Pati people process this fish into salted fish. This research is based on the catch of Green Rough-Backed Puffer landed in PPI Banyutowo by fishermen who make arrests in the waters of Pati. This study aims to determine the value of the long weight relationship of Green Rough-Backed Puffer in the waters of Pati. This research was conducted with descriptive research method, where sampling was taken based on the method of consideration purposive sampling method. The study was conducted in February - April 2016 at PPI Banyutowo. The material used was 360 samples of Green Rough-Backed Puffer. Sampling of Green Rough-Backed Puffer was carried out 3 times, namely February 13, March 12, and April 9, 2016. Analysis of the data was in the form of an analysis of the long weight relationship of Green Rough-Backed Puffer. The results showed that the growth of Green Rough-Backed Puffer in February - April 2015 was positive allometric which had a slope value (b) of 3,30.

Studi Penempelan Juvenil Karang Pocillopora damicornis Pada Jenis Substrat Kolektor Dan Zona Terumbu Yang Berbeda Di Pulau Panjang, Kabupaten Jepara Kisworo, Hendro; Wijayanti, Diah Permata; Munasik, Munasik
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Coral reef at Panjang Island is being gradually degraded. At least, the availability of substrates that suitable for coralâ€™s attachment has a great effect to coral abundance. The aim of this research is to know coral juvenileâ€™s recruitment (Pocillopora damicornis) based on the abundance of coral juvenile which attaches on the different location (zone), placement (position), type of substrate, and time of observation. This experimental research was carried out on August-November 2009 at Panjang Island, Jepara. The research uses substrate from Cement Block and Andesite Stone placed on the column and bottom of water at reef flat and reef slope zone. The result shows that coral juvenile abundance rise significantly along with time rising. Abundance of coral juvenile also different between coral zones, P.damicornis juvenile on reef flat zone is more higher (86 colonies founds), than reef slope zone (64 colonies founds). This is because the substrate in reef slope zone was far from adult coral colonies which produce planula, whereas in reef flat zone there was much found adult coral colonies.

Pengaruh Perbedaan Jenis Substrat dan Kedalaman Terhadap Jumlah Juvenil Karang yang Menempel di Perairan Pulau Sambangan, Kepulauan Karimunjawa, Jepara Hartono, Eko Puji; Munasik, Munasik; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Coral reef degradation caused by the human and natural factors. Human factors such as pollution and exploitation of marine resources is excessive. While natural factors such as waves, currents, brightness, substrate type and depth. This study aims to determine the effect of differences in substrate type and depth to the number of juvenile coral attached. Substrate used is a slab of concrete blocks and andesite which have been compiled into a series of collector substrate. Were of compile congcrete blok and andesit mounted at a depth of 3m and 10m. The study was conducted with experimental methods and data processed in the field by descriptive analysis. The observation station were using a purposive sampling method. The substrate was observed every month with 3 repetitions. After 6 mounth of observation the slabs of compile concrete blocks were tooh from the side and them. Taken were dipped in a chlorine solution of 10%. Juveniles determined attached identification and calculate. The number of juvenile corals on a andesite substrate at a depth of 3 meters by 14 induvidu the position of the water column and as many as 17 induvidu the bottom position, while at a depth of 10 meters as 11 induvidu at position 18 induvidu water column and bottom positions. While the number of juvenile corals are attached to the substrate concrete block at a depth of 3 meters by 24 induvidu the position of the water column and as many as 30 induvidu the bottom position, while at a depth of 10 meters by 17 induvidu at position 22 induvidu water column and bottom positions. The results may indicate that the differences in substrate type and depth of exercising influence over the settlement of juveniles.

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